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the general social survey polled a sample of 209 people aged 18-30 in the year 2000,asking...

the general social survey polled a sample of 209 people aged 18-30 in the year 2000,asking them how many hours per week they spent on the internet. the sample mean was 6.75 with a standard deviation of 7.7. a second sample, the mean was 7.34 with a standard deviation 10.9.assume these are simple random sample from population of people aged 18-30.can you conclude that the mean number of hours per week spent on the internet increased between 2000 and 2006?. Calculate the Margin of Error for 95% confidence level.

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